Administration Console Online Help

Invalidate an SNMP
credentials cache

To optimize performance, an SNMP
agent caches the credential maps that correlate WebLogic Server users
with SNMP credentials. To make sure that the cache contains the latest
set of SNMP credentials, an agent periodically invalidates its cache.
(For information about the option that configures the frequency with
which an agent invalidates its cache, see the Credential
Cache Invalidation Interval option in Configuration Options.) After the cache is
invalidated, the next time the agent requests credentials, it
regenerates its cache.

Note that making a change to the credential map does not
automatically update the cache for SNMP agents. Instead, the cache is
updated only after it has been invalidated. For example, if you update a
privacy password in an existing entry in the SNMP credential map, SNMP
agents are not aware of the new password until their caches are
invalidated and regenerated. An SNMP user with the old security password
can still use the agents to access WebLogic Server data until the cache
is invalidated.

After you modify a credential map, you can either wait for each SNMP
agent to invalidate its cache, or you can invalidate it immediately.

To invalidate an SNMP credentials
cache immediately:

If you have not already done so, in the Change Center of the Administration Console, click Lock & Edit (see Use the Change Center).

In the
Administration Console, under Domain Structure,
expand Diagnostics and select
SNMP.

On the
Summary of SNMP Agents page, click the
Control tab.

On the
SNMP Control page, select the WebLogic Server
instances on which you want to invalidate entries in the cache. Then
click the Invalidate Cached Credentials
button.

On the Invalidate User Credential Cache
page, in User Name, enter the user name for
whom you have modified credentials on the credentials map. Then click
the Yes button.